@guilhermenicolini/core-validators v1.2.0

Core Validators

This library maintains all data validations

Get Started

nvm use
npm install

This will install all dependencies and install git hooks

Recommended Commit Message Format

<type>(<scope>): <short summary>
  │       │             │
  │       │             └─⫸ Summary in present tense. Not capitalized. No period at the end.
  │       │
  │       └─⫸ Commit Scope: Optional, can be anything specifying the scope of the commit change.
  |                          For example $location|$browser|$compile|$rootScope|ngHref|ngClick|ngView, etc.
  |                          In App Development, scope can be a page, a module or a component.
  │
  └─⫸ Commit Type: feat|fix|docs|style|refactor|test|chore|perf|ci|build|temp

Development

npm run test:unit

Keep watching unit tests while coding

Commits and Pushes

Commits message should follow recommendations above. On pre-commit all related tests based on staged files should be valid On pre-push all tests should be valid

Pre-deploy

npm login

Login into NPM.

Deploy

Change package.json version

npm run deploy

Compile the typescript project into javascript on destination folder and publish package on NPM

Documentation

Installation

npm install @guilhermenicolini/core-validators@latest

Usage

ValidationBuilder

  import { ValidationBuilder as Builder } from '@guilhermenicolini/core-validators'

  const validators = [
    ...Builder.of({ fieldName: 'id', value: 'my-id' }).required().uuid().build(),
    ...Builder.of({ fieldName: 'name', value: 'John Doe' }).required().build()
  ]

ValidationComposite

  import { Validator, ValidationComposite as Composite } from '@guilhermenicolini/core-validators'

  validate (validators: Validator[]): Error | undefined {
    return new Composite(validators).validate()
  }

Available Validators

Required (RequiredValidator)

Validate if value has value

  import { ValidationBuilder as Builder } from '@guilhermenicolini/core-validators'

Builder.of('name', 'John Doe').required().build()

> ##### RequiredIf (RequiredIfValidator)
Validate if value has value based on a condition

import { ValidationBuilder as Builder } from '@guilhermenicolini/core-validators'

Builder.of('lastname', 'Doe').requiredIf(name?.length > 0).build()

> ##### Uuid (UuidValidator)
Validate if value is a valid uuidv4

import { ValidationBuilder as Builder } from '@guilhermenicolini/core-validators'

Builder.of('id', 'g5234234-2345234-343').uuid().build()

> ##### Enum (EnumValidator)
Validate if value is a valid enum value

import { ValidationBuilder as Builder } from '@guilhermenicolini/core-validators'

Builder.of('status', 'active').enum(StatusEnum).build()

> ##### Subdomain (SubDomainValidator)
Validate if value is a valid subdomain name

import { ValidationBuilder as Builder } from '@guilhermenicolini/core-validators'

Builder.of('subdomain', 'www').subdomain().build()

> ##### Array (ArrayValidator)
Validate if value is a valid array with specific min length if necessary

import { ValidationBuilder as Builder } from '@guilhermenicolini/core-validators'

Builder.of('entries', []).array().build()

> ##### Number (NumberValidator)
Validate if value is a number type

import { ValidationBuilder as Builder } from '@guilhermenicolini/core-validators'

Builder.of('value', 123).number().build()

> ##### Min (MinLengthValidator)
Validate if value has a min length

import { ValidationBuilder as Builder } from '@guilhermenicolini/core-validators'

Builder.of('value', '123').min(8).build()

> ##### Regex (RegexValidator)
Validate if value matches a regex

import { ValidationBuilder as Builder } from '@guilhermenicolini/core-validators'

Builder.of('value', '123').regex(/a-z/, 'must have at least one lower case character').build()

> ##### Email (EmailValidator)
Validate if value is a valid e-mail

import { ValidationBuilder as Builder } from '@guilhermenicolini/core-validators'

Builder.of('value', 'john.doe@inbox.me').email().build()

> ##### SameAs (SameAsValidator)
Validate if values are the same

import { ValidationBuilder as Builder } from '@guilhermenicolini/core-validators'

Builder.of('value', '123').sameAs('456').build()

> ##### External (ExternalValidator)
Validate using an external validation

import { ValidationBuilder as Builder, MobileValidation } from '@guilhermenicolini/core-validators'

Builder.of('value', '123').external(new MobileValidation()).build()

> ##### Password (PasswordValidator)
Validate if value is password

import { ValidationBuilder as Builder } from '@guilhermenicolini/core-validators'

Builder.of('value', '123').password().build()

Options:
- min: minimal value length, default is 8
- lowercase: at least one lowercase character, default is true
- uppercase: at least one uppercase character, default is true
- numeric: at least one numeric character, default is true

> ##### Cpf (CpfValidator)
Validate if value is CPF

import { ValidationBuilder as Builder } from '@guilhermenicolini/core-validators'

Builder.of('value', '123').cpf().build()

> ##### Cnpj (CnpjValidator)
Validate if value is CNPJ

import { ValidationBuilder as Builder } from '@guilhermenicolini/core-validators'

Builder.of('value', '123').cnpj().build()

> ##### CpfCnpj (CpfCnpjValidator)
Validate if value is CPF or CNPJ

import { ValidationBuilder as Builder } from '@guilhermenicolini/core-validators'

Builder.of('value', '123').cpfcnpj().build()

#### Available Validations

> ##### MobileValidation
Check if value is a mobile phone with country code

import { MobileValidation } from '@guilhermenicolini/core-validators'

const mob = new MobileValidation() mob.isValid('+5511998765432')

> ##### UrlValidation
Check if value is a valid url

import { UrlValidation } from '@guilhermenicolini/core-validators'

const url = new UrlValidation() url.isValid('https://domain.com')

#### Available Errors

> ##### RequiredFieldError

import { RequiredFieldError } from '@guilhermenicolini/core-validators'

throw new RequiredFieldError('name')

> ##### InvalidFieldError

import { InvalidFieldError } from '@guilhermenicolini/core-validators'

throw new InvalidFieldError('name')

#### Available Interfaces

> ##### Validator
Create custom validators

import { Validator, InvalidFieldError } from '@guilhermenicolini/core-validators'

export class TestValidator implements Validator { constructor ( readonly fieldName: string, readonly value?: any ) {}

validate (): Error | undefined {
  if (this.value !== 'test') {
    return new InvalidFieldError(this.fieldName)
  }
}

}

> ##### Validation
Create custom validation to use with external libraries

import { Validation, InvalidFieldError } from '@guilhermenicolini/core-validators' import { isEmail } from 'validator'

export class EmailValidation implements Validation { constructor ( readonly fieldName: string, readonly value?: any ) {}

isValid (): boolean {
  return isEmail(this.value)
}

}

### Principles

* Single Responsability Principle (SRP)
* Open Closed Principle (OCP)
* Liskov Substitution Principle (LSP)
* Interface Segregation Principle (ISP)
* Dependency Inversion Principle (DIP)
* Separation of Concerns (SOC)
* Don't Repeat Yourself (DRY)
* You Aren't Gonna Need It (YAGNI)
* Keep It Simple, Silly (KISS)
* Composition Over Inheritance

> ### Design Patterns

* Composite
* Builder
* Dependency Injection

> ### Methodologies

* TDD
* Clean Architecture
* DDD

> ###Libraries and Tools

* Typescript
* Jest
* Eslint
* Husky
* Validator